The End of Alzheimer's The First Programme to Prevent and
Reverse the Cognitive Decline of Dementia Dale Bredesen (2017) Penguin Random
House, London. 308 pages,
£16.99. ISBN:9781785041228
Alzheimer’s – the very word is
enough to bring on a measure of fearful anxiety, especially if
you are over 65. And so it should because, according to
Dale Bredesen in the opening pages of this book, it is ‘the
only one of the Western world’s ten most common causes of
death for which there is no effective treatment’ (p. 4).
Moreover, ‘… it’s not “only” fatal. Alzheimer’s is worse
than fatal. For years and sometimes decades before it
opens the door to the grim reaper.’ In the meantime,
‘Alzheimer’s disease robs its victims of their very humanity
and terrorizes their families. All gone, in a grim and
unrelenting descent into a mental abyss where they no longer
know their loved ones, their past, the world, or themselves’
(p. 5).
The Scientific Background
For the last 50 or so years, molecular biology has made huge
strides in understanding the causes of, for example, various
cancers and cardiovascular diseases and it has begun to
develop effective treatments. Not so with
Alzheimer’s. Sure, it has been linked to the formation
of amyloid plaques in the brain and this so-called amyloid
hypothesis has become scientific dogma. Yet laboratory
and clinical trials costing billions have tested thousands of
potential drugs either to inhibit the development or
accelerate the destruction of these plaques, but to almost no
avail.
True, there are a few drug treatments using, for instance,
donepezil or memantine. Here is their underlying big
idea. Acetylcholine is a key brain chemical that
operates as a neurotransmitter, signalling from one neuron to
another, allowing us to think, remember, see, move, and so
on. This acetylcholine is destroyed by the enzyme
cholinesterase, but donepezil is a cholinesterase inhibitor,
an enzyme that can stop the destruction of
acetylcholine. If Alzheimer’s is associated with a lack
of acetylcholine, then inhibiting its destruction might lessen
the effects of the disease. Donepezil sort of works, but
not sufficiently effectively. Memantine functions
similarly via the neurotransmitter called glutamate.
Neither drug stops Alzheimer’s worsening, and they are
certainly not cures.
The Bredesen Claims
Herein, one of the fundamental obstacles to treating
Alzheimer’s. It is not a single disease. Though
symptoms may be similar, there are at least three important
subtypes and each, according to Bredesen, needs a different
approach. Yet on page 10, he declares his hand, ‘Let me
say this as clearly as I can: Alzheimer’s disease can be
prevented, and in many cases its associated negative decline
can be reversed.’ That is the boldest of bold claims,
and it is the very substance of this book, appropriately
subtitled, The First Programme to Prevent and Reverse the
Cognitive Decline of Dementia.
Bredesen further claims that ‘Alzheimer’s arises from an
intrinsic and healthy downsizing programme for your brain’s
extensive synaptic network. But it is a programme that
has run amok. In Alzheimer’s, an otherwise normal
brain-housekeeping process has gone haywire’ (p. 13).
The ReCODE Protocol
Enter ReCODE, the Reversal of COgnitive DeclinE. This is
what Bredesen calls ‘a sophisticated personalized protocol
based on our decades of research on the neurobiology of
Alzheimer’s disease’ (p. 13). Much of this protocol was
devised in response to the results of a simple case study with
ten patients reported in a 2014 paper entitled, ‘Reversal of
cognitive decline: a novel therapeutic program’, by Dale E
Bredesen and published in Aging (2014) 6:
707-717. There were also two additional follow-up papers
published in 2016 and 2018 in Aging and The
Journal of Alzheimer’s Disease & Parkinsonism
respectively. These are not, contrary to Bredesen’s
assessment (p. 10), ‘leading medical journals’. Indeed,
none of these three papers includes a Methods section so the
work cannot be repeated and verified by others, which is the
very touchstone of all experimental science. In
addition, there is no record of how patients were
selected. Who were included or excluded? What
stage of Alzheimer’s did they have? And what about
non-responders? Did everyone on the ReCODE programme
really improve, and if so, to what extent? All this is a
somewhat shaky foundation for the construction of such an
allegedly radical therapy. Is this hard science?
Are these researchers hard scientists? What are
Bredesen’s and his co-workers’ academic credentials?
They were apparently conventionally educated and mostly
employed by the Department of Neurology, University of
California and the Buck Institute for Research on Aging,
California. The latter is a well-endowed not-for-profit
organisation that undertakes research on aging and age-related
diseases. Dale Bredesen was its founding president as
well as the CEO of Buck. He now heads its laboratory
which is focused on Alzheimer’s disease. In other words,
these investigators are traditionally-trained, biological
scientists, not medical charlatans.
ReCODE Described
However, ReCODE turns out to consist mostly of unsophisticated
sampling and testing of patients’ metabolites, giving low-tech
food supplements and promoting some simple lifestyle
changes. ReCODE is branded as a ‘direct-to-consumer
intervention’. It is administered, somewhat confusingly,
through Apollo Health and other affiliates, such as
CogMission. The latter, based in Edinburgh, offers
Bredesen protocol basic assessments, laboratory tests and
contacts with trained practitioners for £3,600, which, with
average add-ons, can, according to its website, mean ‘the cost
per day is £32’, or £11,680 per year, plus a monthly
subscription fee of £500, all ’payable monthly by standing
order.’ There are also likely to be retesting fees and
the addition of a host of available options including, for
example, cognitive games and online support. The latter
even offers ‘a brain-healthy, fully prepared, chef-curated
cuisine by Nutrition for Longevity. KetoFLEX 12/3
provides nutritional support for cognitive health … to
optimally fuel your brain.’ These are hardly the
expected components of a scheme heralded as revolutionary for
the prevention and reversal of Alzheimer’s. Surely, we
were expecting some serious, novel hi-tech genetic
engineering, stem-cell technologies, neural transplants,
potent biotech drugs and so forth.
Still undeterred, Bredesen maintains that ‘Alzheimer’s disease
is actually a protective response to, specifically, three
different processes: inflammation, suboptimal levels of
nutrients and toxic exposures’ (p. 16). Subscribers to
ReCODE are first subjected to a battery of tests, known as
Cognoscopy, in order to define their personal causal
factors. The resulting risk profiles then provide the
bases for optimizing their personal treatments to prevent and
reverse their cognitive decline. Once recruited onto
ReCODE, they are offered (of course, the sceptic would say)
extra possibilities ‘to achieving the very best results and to
sustaining that improvement’ (p. 17). Ka-ching!!
Some would call it ‘preying on the vulnerable’.
Nevertheless, Bredesen further pronounces (p. 18), ‘What the
research from my laboratory colleagues and me adds up to is
this: No one should die from Alzheimer’s disease.’
Here ended the book’s first 19 pages – 289 to go. What
had so far been a decent outline of Alzheimer’s disease and
the ReCODE protocol, the book now descends into chapter after
chapter of numerous diagrams, interminable lists and
descriptions of various nutrients and enzymes, basic biology,
potential add-ons, biographies and personal testimonies.
The latter are a mainstay of Bredesen’s work, yet these
subjective assessments of cognitive function are not only
susceptible to selection bias, but they are also generally
regarded as unreliable. Such apocryphal information,
anecdotal narrative and hearsay evidence have no part in hard
science.
It was all too much for me – I gave up and put the book
down. After a while, I did pick it up again to flip and
scan the remaining pages. Obviously, this was not a
great read for me. Yet The End of Alzheimer’s
has sold amazingly well. It has appeared on numerous
best-selling book lists with thousands of 5-star ratings on,
for instance, Amazon. It seems almost impudent to
question such a popular read. But I shall.
ReCODE Questioned
At this point I became uneasy. Is ReCODE akin to those
internet healthcare scams, like those claiming to cure
worn-out knees, problematic prostates, uncontrolled obesity
and so forth? Are subscribers being taken for a
pecuniary ride? Undaunted, Bredesen brashly asserts,
‘Here, finally, is nothing less than the first good news about
Alzheimer’s disease’ (p. 16). Here, surely is hype and
hyperbole. After all, if ReCODE really does prevent and
reverse Alzheimer’s, why has not mainstream medicine adopted
it or, at least, subjected it to the rigours of extensive
clinical trials? I am sorry to say that there are
millions of people around the world suffering from diverse,
incurable diseases. They have tried conventional,
evidence-based therapies but, for various reasons, relief has
remained elusive. They are the cohort who are
particularly susceptible to being persuaded to try alternative
remedies. Their ‘proof’ is typically based on
pseudoscience and subjective evidence. What level of
verification is needed by such sufferers of Alzheimer’s?
There are numerous additional questions surrounding Bredesen
and his ReCODE protocol. First, and above all, as
already mentioned, why has ReCODE not been adopted
mainstream? Second, how have the claimed brain
improvements been measured? Third, could they have been
caused by the placebo effect, which can be notoriously driven
by patient expectation. Fourth, where are the expected
positive and negative peer-reviewed research papers?
Fifth, where are the independently-published studies that test
Bredesen’s hypotheses? Sixth, if ReCODE is truly
revolutionary, why have supporting research papers not
appeared in the world’s top-rated scientific and medical
journals, like Nature and The Lancet?
Seventh, why does ReCODE look like a business
proposition? Eighth, what other human disease therapy
relies on a business model for treatment?
In Conclusion
There are elements of the ReCODE protocol that can be both
beneficial and health promoting. For instance, it is
well-known that exercise, good nutrition, social engagement,
and so on, can help keep the brain attuned. In addition,
these strategies are largely cost-free for patients.
However, seriously-ill people can commonly hold some
unorthodox and irrational beliefs. They understandably
seek positive interventions for what are mostly currently
incurable diseases. And, having tried and abandoned much
of conventional medicine, such beliefs can be forcefully
compelling in a realm with little or no hope.
So far in the twenty-first century, doctors still cannot cure
Alzheimer’s disease, but they can provide patients with some,
albeit minor, positive treatments and palliative care to
moderate cognitive decline. On the other hand, patients
should be warned by doctors against adopting unrealistic
expectations and reliance on unproven therapies.
So how does the ReCODE, the Bredesen protocol, measure
up? Undoubtedly, some, on the basis of its huge fanbase
of loyal supporters, subscribers and consumers, would evaluate
it as successful. Others would call it a mixture of
common sense and unproven methodology. And a number
would judge it to be a scientifically unsound, ethically
dubious and financially costly intervention. As such, it
is a plan from which it is best to stay away. At least,
that’s what I plan to do!